2026/04/06
This section lists core technical parameters of 127-8220 fuel injector, all data strictly aligned with c-at OEM standards to ensure full compatibility and stable performance for c-at 3116 engines, presented clearly for customers to verify, match and reference quickly.
Basic Product Specific-ations
This section lists core technical parameters of 127-8220 fuel injector, all data strictly aligned with c-at OEM standards to ensure full compatibility and stable performance for c-at 3116 engines, presented clearly for customers to verify, match and reference quickly.
Specific-ation Item
Detailed Parameter
Part Number
127-8220 (c-at OEM Equivalent Direct Replacement)
Compatible Engine
c-aterpillar 3116 Diesel Engine (Exclusive Dedic-ated Fit)
Injector Type
Mechanical Unit Injector (MUI), Pencil Type Heavy-Duty Fuel Injector
Main Material
High-strength quenched & tempered alloy steel body, precision-ground plunger & barrel assembly, hardened wear-resistant needle valve, high-temperature & corrosion-resistant internal sealing parts
Working Pressure
40-120MPa (Strict OEM Calibration, Stable Pressure Output)
Net Weight
0.55kg / 1.21lbs
Product Condition
Brand New, OEM Standard, Non-Genuine c-at Replacement Part
Quality Certific-ation
ISO 9001 Certified, 100% Full Performance Tested Before Shipment
Applicable Fuel
Low-sulfur diesel, standard heavy-duty on/off-highway diesel fuel
Compatible Equipment & Cross Reference Numbers
The 127-8220 fuel injector fits all c-at 3116 engine-powered heavy equipment, covering mainstream applic-ation scenarios, and matches a full set of cross-reference part numbers to facilitate quick inventory matching, batch replacement and reduced equipment maintenance downtime, ideal for wholesale, repair shops and end-user procurement.
Applic-ation Scenario
Compatible Equipment Models
Cross Reference Part Numbers
Construction Machinery
c-at 3116 Engine Excavators, Wheel Loaders, Bulldozers, Motor Graders, Road Compactors
1278220, 127-8218, 127-8216, 127-8213
Industrial Power
3116 Engine-driven Generators, Water Pumps, Air Compressors, Fixed Industrial Power Units
127-8211, 127-8209, 127-8207
Marine & Mining Vehicles
Marine Auxiliary Engines, Off-highway Mining Trucks, Engineering Support Vehicles with 3116 Engine
127-8205, 107-7773, 107-7734
Core Product Advantages & Key Features
Our c-at 127-8220 injector outperforms generic aftermarket parts, adopting ultra-precision CNC machining and multi-layer strict quality control to fully replic-ate and exceed OEM performance standards, with core advantages specially optimized for long-term heavy-duty operation, as detailed in the table below:
Feature c-ategory
Detailed Advantage Description
Precision Fuel Injection & Optimized Combustion
Adopts high-precision CNC fine grinding technology, with internal matching clearance strictly controlled within 1-2μm, ensuring consistent fuel injection volume and accurate timing synchronization with engine operation. It generates an optimized conical fog spray pattern, achieving full and sufficient fuel combustion, reducing fuel consumption by up to 8-10%, effectively eliminating black smoke, white smoke and abnormal exhaust emissions, and fully restoring engine rated power and torque output under heavy continuous load.
High Durability & Wear Resistance
Forged from high-strength heat-treated alloy steel with double surface hardening and professional anti-corrosion coating treatment, resistant to long-term diesel corrosion, high-pressure fuel impact and continuous mechanical friction wear. Designed to withstand more than 1.3 million injection cycles under heavy load, greatly extending service life, cutting down frequent replacement costs and avoiding unexpected equipment shutdown losses.
Direct OEM Fit & Hassle-Free Installation
Manufactured 1:1 according to original c-at 3116 engine dimensions, interface standards and installation torque parameters, realizing true plug-and-play installation without any modific-ation, regrinding or later professional calibration. It perfectly matches the original engine fuel rail and mounting position, completely avoiding installation errors, compatibility issues and subsequent engine performance abnormalities, saving maintenance time and labor costs significantly.
Rigorous Full-Spectrum Pre-Shipment Testing
Each 127-8220 injector undergoes 6 strict professional quality tests before delivery: spray pattern uniformity test, static leakage test, dynamic pressure stability test, fuel delivery accuracy test, high-temperature durability simulation test and anti-vibration test. 100% qualified before shipment, ensuring stable and reliable performance right out of the box, with zero early failure risks.
Harsh Environment Adaptability
Specially optimized for tough working conditions, suitable for long-term stable operation in high-temperature construction sites, dusty mines, humid marine environments and remote industrial areas. It maintains consistent injection performance under variable load fluctuations, effectively preventing engine misfiring, rough idle and sudden failures during heavy-duty operation, adapting to various complex working scenarios.
Common c-at 3116 Engine Faults Solved
Replacing worn or faulty injectors with our premium 127-8220 fuel injector can quickly resolve typical chronic fuel system failures of c-at 3116 engines, restore peak engine performance and effectively reduce long-term operating costs, solving the following frequent issues:
Engine power loss, slow acceleration, insufficient torque and weak operation under heavy load
Excessive fuel consumption, sharp rise in daily fuel and equipment operating costs
Abnormal exhaust emissions failing environmental protection standards, visible smoke during operation
Engine rough idle, frequent stalling, unstable idle speed and obvious abnormal mechanical noise
Fuel leakage at injector mounting interface, fuel dilution of engine oil and premature wear of internal engine parts
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